(19)
(11) EP 2 843 790 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.03.2015 Bulletin 2015/12

(43) Date of publication A2:
04.03.2015 Bulletin 2015/10

(21) Application number: 14275179.1

(22) Date of filing: 29.08.2014
(51) International Patent Classification (IPC): 
H02J 5/00(2006.01)
H02J 17/00(2006.01)
 H02J 7/02(2006.01)
H01F 38/14(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 30.08.2013 KR 20130104487
25.08.2014 KR 20140110978

(71) Applicant: Samsung Electro-Mechanics Co., Ltd.
Gyeonggi-do (KR)

(72) Inventors:
  • Jeong, In Wha
    Gyeonggi-Do (KR)
  • Kim, Hak Ryong
    Gyeonggi-Do (KR)
  • Kim, Hugh
    Gyeonggi-Do (KR)
  • Kang, Moo Jong
    Gyeonggi-Do (KR)

(74) Representative: Potter Clarkson LLP 
The Belgrave Centre Talbot Street
Nottingham, NG1 5GG
Nottingham, NG1 5GG (GB)

   


(54) Power supply device


(57) A power supply device may be capable of wirelessly transmitting power at a plurality of resonance frequencies. The power supply device may include: a power conversion unit converting input power into first power; and a wireless power supply unit varying a switching frequency for switching the first power and wirelessly transmitting the switched first power at at least one of a plurality of resonance frequencies.







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